塔河油田选择性渗流多孔介质堵剂研究

Research of selective filtration porous media pluming agent in Tahe Oil Field

何龙 吴文明 潘阳秋 王保成

He Long Wu Wenming Pan Yangqiu Wang Baocheng

中国石化 西北油田分公司 工程技术研究院,乌鲁木齐 830011

ResearchInstituteofEngineeringTechnology,SINOPEC Northwest Company,Urumqi,Xinjiang 830011,China

针对塔河油田碳酸盐岩油藏裂缝发育、非均质性强、堵调难度大问题,研究选择性渗流多孔介质堵剂,将裂缝改造为具有油水选择性的多孔介质,控制注入水、底水、驱油剂的窜进速度,为调堵剂提供孔隙支撑。调研和分析后确定研究方向为涂覆固化颗粒技术结合选择性堵水技术。室内合成评价优化了体系配方,可视化裂缝模拟发现堵剂形成砂堤具有良好的耐冲刷能力,可以满足堵水和调剖中填充大裂缝的要求。

Fractures are widespread in carbonate reservoirs of the Tahe Oil Field.The reservoirs are het-erogeneous,and are difficult to keep water shutoff and profile controlled.A selective filtration porousmedia plugging agent was chose to modify fractures into oil/water selective porous media.In this way,the velocities of injected water,bottom water and oil displacement agent were controlled.Solidified par-titles coating and selective water blocking technologies were taken as the research focus.In lab resear-ches,formula of the agent was improved.Simulations in visualized fractures indicated that sand barriersformed by the agent could resist scour.The agent can be used in big fractures to shutoff water and con-trol profile.

https://doi.org/10.11781/sysydz2011S1159